Osg 20430900 Square End Mill 5/8 in 3 Flute Solid Carbide

Product Description

The OSG 20430900 is a solid carbide square end mill designed for milling operations requiring a rigid, high-performance cutting tool. With a 0.625 inch mill diameter, 0.625 inch length of cut, and a 45-degree helix angle, this end mill delivers efficient chip evacuation and smooth cutting action in a range of ferrous and non-ferrous materials. The three-flute configuration balances chip clearance with core strength, making it well-suited for slotting, profiling, and peripheral milling. Right-hand cut and right-hand flute orientation are standard for conventional CNC and manual milling setups. This tool is sold individually and is intended for use by machinists and tooling professionals.

This end mill is appropriate for use in job shops, production machining environments, and toolrooms where a regular-length, extended-reach 5/8 inch solid carbide end mill is required. The 1.625 inch reach length and 0.621 inch neck diameter provide clearance for light extended-reach applications. It is compatible with standard 5/8 inch tool holders and collets. At 3.5 inches overall length, it fits within the working envelope of most vertical machining centers and knee mills running 5/8 inch tooling.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding milling applications
• 45-degree helix angle promotes efficient chip flow and reduced cutting forces
• Three-flute design balances chip clearance with tool body strength
• Right-hand cut, right-hand flute spiral geometry for standard CNC and manual milling setups
• Extended reach design with 1.625 inch reach length and 0.621 inch neck diameter
• Mill diameter tolerance of plus 0.000 inches and minus 0.002 inches for consistent fitment

Compatibility

Designed to seat in standard 5/8 inch end mill holders, collet chucks, and shrink-fit holders used on vertical machining centers and manual knee mills. Part of OSG Series 2043.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for tool holding and runout verification. Confirm holder bore and collet size match the 0.625 inch shank diameter before mounting. Verify spindle and tool holder are clean and free of chips or burrs prior to seating the end mill. Always follow your facility safety protocols and machine-specific procedures when changing cutting tools.